Como vc confirmou que o teu firewall tá bloqueando o PPTP?
Neguei a entra e saida de pacotes, depois so desbloquei o acesso á htto,https,dns , so que vpn pptp não consigo pelo gufw, pesquisei e descobri agora pouco que as portas a serem desbloqueadas são 1723 e 47 , criei duas regras no gufw pra desbloquear tanto in quanto out , em ambos(tcp e udp), mas mesmo assim não consigo acessa a vpn pública, so que se eu desabilitar o gufw ai eu consigo me conectar a vpn, to querendo uma solução no gufw pra funcionar a conexão pptp .
a saída do meu arquivo syslog esta assim:
Feb 27 21:54:54 lubuntupc NetworkManager[1384]: <info> Starting VPN service 'pptp'...
Feb 27 21:54:54 lubuntupc NetworkManager[1384]: <info> VPN service 'pptp' started (org.freedesktop.NetworkManager.pptp), PID 6338
Feb 27 21:54:54 lubuntupc NetworkManager[1384]: <info> VPN service 'pptp' appeared; activating connections
Feb 27 21:54:57 lubuntupc NetworkManager[1384]: <info> VPN plugin state changed: starting (3)
Feb 27 21:54:57 lubuntupc NetworkManager[1384]: <info> VPN connection 'VPNBOOK-UK' (Connect) reply received.
Feb 27 21:54:57 lubuntupc pppd[6352]: Plugin /usr/lib/pppd/2.4.5/nm-pptp-pppd-plugin.so loaded.
Feb 27 21:54:57 lubuntupc pppd[6352]: pppd 2.4.5 started by root, uid 0
Feb 27 21:54:57 lubuntupc pptp[6357]: nm-pptp-service-6338 log[main:pptp.c:314]: The synchronous pptp option is NOT activated
Feb 27 21:54:57 lubuntupc pppd[6352]: Using interface ppp0
Feb 27 21:54:57 lubuntupc pppd[6352]: Connect: ppp0 <--> /dev/pts/8
Feb 27 21:54:57 lubuntupc NetworkManager[1384]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Feb 27 21:54:57 lubuntupc NetworkManager[1384]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Feb 27 21:54:57 lubuntupc NetworkManager[1384]: <warn> /sys/devices/virtual/net/ppp0: couldn't determine device driver; ignoring...
Feb 27 21:54:58 lubuntupc pptp[6374]: nm-pptp-service-6338 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Feb 27 21:54:58 lubuntupc pptp[6374]: nm-pptp-service-6338 log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply
Feb 27 21:54:58 lubuntupc pptp[6374]: nm-pptp-service-6338 log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established.
Feb 27 21:54:59 lubuntupc pptp[6374]: nm-pptp-service-6338 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Feb 27 21:54:59 lubuntupc pptp[6374]: nm-pptp-service-6338 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
Feb 27 21:54:59 lubuntupc pptp[6374]: nm-pptp-service-6338 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 12544).
Feb 27 21:55:14 lubuntupc kernel: [ 1502.265896] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=60 TOS=0x00 PREC=0x00 TTL=47 ID=29227 DF PROTO=47
Feb 27 21:55:14 lubuntupc kernel: [ 1502.533749] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=61 TOS=0x00 PREC=0x00 TTL=47 ID=29228 DF PROTO=47
Feb 27 21:55:17 lubuntupc kernel: [ 1505.270226] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=60 TOS=0x00 PREC=0x00 TTL=47 ID=29229 DF PROTO=47
Feb 27 21:55:17 lubuntupc kernel: [ 1505.535478] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=61 TOS=0x00 PREC=0x00 TTL=47 ID=29230 DF PROTO=47
Feb 27 21:55:20 lubuntupc kernel: [ 1508.534229] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=61 TOS=0x00 PREC=0x00 TTL=47 ID=29232 DF PROTO=47
Feb 27 21:55:23 lubuntupc kernel: [ 1511.274410] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=60 TOS=0x00 PREC=0x00 TTL=47 ID=29233 DF PROTO=47
Feb 27 21:55:23 lubuntupc kernel: [ 1511.534917] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=61 TOS=0x00 PREC=0x00 TTL=47 ID=29234 DF PROTO=47
Feb 27 21:55:26 lubuntupc kernel: [ 1514.279789] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=60 TOS=0x00 PREC=0x00 TTL=47 ID=29235 DF PROTO=47
Feb 27 21:55:26 lubuntupc kernel: [ 1514.625821] [UFW BLOCK] IN=eth0 OUT= MAC=00:26:18:e9:91:fc:34:bd:fa:b7:90:3d:08:00 SRC=176.126.237.217 DST=192.168.254.5 LEN=61 TOS=0x00 PREC=0x00 TTL=47 ID=29236 DF PROTO=47
Feb 27 21:55:28 lubuntupc pppd[6352]: LCP: timeout sending Config-Requests
Feb 27 21:55:28 lubuntupc pppd[6352]: Connection terminated.
Feb 27 21:55:28 lubuntupc avahi-daemon[1116]: Withdrawing workstation service for ppp0.
Feb 27 21:55:28 lubuntupc NetworkManager[1384]: <warn> VPN plugin failed: 1
Feb 27 21:55:28 lubuntupc NetworkManager[1384]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Feb 27 21:55:28 lubuntupc pppd[6352]: Modem hangup
Feb 27 21:55:28 lubuntupc pptp[6357]: nm-pptp-service-6338 warn[decaps_hdlc:pptp_gre.c:204]: short read (-1): Input/output error
Feb 27 21:55:28 lubuntupc pptp[6357]: nm-pptp-service-6338 warn[decaps_hdlc:pptp_gre.c:216]: pppd may have shutdown, see pppd log
Feb 27 21:55:28 lubuntupc NetworkManager[1384]: <warn> VPN plugin failed: 1
Feb 27 21:55:28 lubuntupc pppd[6352]: Exit.
Feb 27 21:55:28 lubuntupc pptp[6374]: nm-pptp-service-6338 log[callmgr_main:pptp_callmgr.c:234]: Closing connection (unhandled)
Feb 27 21:55:28 lubuntupc pptp[6374]: nm-pptp-service-6338 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Feb 27 21:55:28 lubuntupc NetworkManager[1384]: <warn> VPN plugin failed: 1
Feb 27 21:55:28 lubuntupc NetworkManager[1384]: <info> VPN plugin state changed: stopped (6)
Feb 27 21:55:28 lubuntupc pptp[6374]: nm-pptp-service-6338 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Feb 27 21:55:28 lubuntupc NetworkManager[1384]: <info> VPN plugin state change reason: 0
Feb 27 21:55:28 lubuntupc NetworkManager[1384]: <info> Policy set 'Conexão ethernet 1' (eth0) as default for IPv4 routing and DNS.
Feb 27 21:55:28 lubuntupc NetworkManager[1384]: <warn> error disconnecting VPN: Could not process the request because no VPN connection was active.
To precisando muito me conectar a vpn pptp estando com meu firewall ativo, preciso saber como liberar o acesso.